Classification of Plants 



263 



STEMS OF PLANTS. 



f i . Above ground 

 I. Distribution of Stems 2 ' j 



1 1. Above ground 



2. Kinds of Stems 



. 2. Under ground 



3 In 



4. Underground 



1. Culm (straw stem of grass 



2. Shrubby 



3. Bushy 



4. Tree-trunks 



1. Rhizome (root-stock) 



2. Tuber (potato) 



3. Corn (solid bulb) 

 . 4. Bulb (scaly) 



3. Stems as Regards Direction of Growth 



Anomalous Stems and Branches 



f i. Sucker 

 j 2. Tendril 

 [3. Spines 



5. Forms oi Stems 



1. As regards f i. Deliquescent (divided) 



branching | 2. Excurrent (central shaft) 



2. Jointed 



3. Square 



4. Cylindrical 



5. Flat or leaf-like 



6. Spherical 



